Cheats Codes:
Select 'Cheats' at the 'Main' menu and enter the following case sensitive codes (without the quotes) to enable the corresponding effect.

Unlock 10,000 Gold:
Enter 'richstick'

Unlimited Bullets:
Enter 'cosmittack'

Unlimited Flame Cells:
Enter 'actionescape'

Unlimited Rockets:
Enter 'doomsday'

Unlock ALL Weapons:
Enter 'spazattack'

Unlimited Rage:
Enter 'rawrboom'

Console cheats:
To open the console, go to the "base" folder located in the installation folder of Rage and open the default.cfg with a text editor, then put right under "unbindall" in the upper Area "com_allowConsole 1" (without quotes), save.
Now you can open the console by pressing the tilde button during gameplay. (the location of the tilde button may vary on what keyboard or language settings you use)

Steam achievements
Complete the following tasks to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", then "My profile", then "View all my games", then the game and view stats.
A True Legend: Complete a Legend of the Wasteland on Nightmare difficulty.
Anthology: Complete all Legends of the Wasteland.
Arts and Crafts: Construct 10 engineering items.
Bringin' Home the Bacon: Earn 750 Dollars in one episode of Bash TV in the Campaign.
Debunked: Complete Shrouded Bunker in the Campaign.
Decapathon: Get 10 Headshot kills with the Wingstick.
Decrypted: Complete Jackal Canyon in the Campaign.
Deliverance: Complete the final round of Strum.
Demolition Man: Destroy 100 enemy cars.
Dev Graffiti: Find the secret Developer Graffiti Room.
Fresh Meat: Complete a public Road RAGE match.
Ghost Buster: Complete Ghost Hideout in the Campaign.
Gladiator: Complete Mutant Bash TV in the Campaign.
Gotta Have 'Em All: Collect all Playing Cards on one play-through.
Hardest Deck: Beat teague's hardest deck.
Hat Trick: Kill at least 3 Enemies with a single Mind Controlled Enemy.
Hey, not too rough: Finish the Campaign on any difficulty.
Hurt me plenty: Finish the Campaign on at least Normal difficulty.
It's Alive!: Complete Dead City in the Campaign.
It's Good!: Score each of the 3 Field Goals from the ATV.
Jackpot!: Roll 4 Targets in the first round of Tombstones.
Jail Break: Complete Authority Prison in the Campaign.
Jetpacker: Kill an Authority Enforcer during Jetpack descent.
Jumper: Perform all 18 Vehicle Jumps.
Just a Flesh Wound: Complete the final round of 5 Finger Filet.
Keep 'Em Coming: Get 5 kills with one deployed sentry turret.
Lead Foot: Win a Race in the Campaign.
Master Chef: Collect all Recipes and Schematics in one play-through.
Mechanocide: Kill 100 Enemies with Sentry Bots, Sentry Turrets, or RC Bomb Cars.
Minigamer: Win all Minigames.
Mr. Oddjob: Complete 5 Job Board Quests in one play-through.
Mutie Blues: Complete Blue Line Station in the Campaign.
Mvp: Get first place in a public Road RAGE match.
No Room for Sidekicks: Complete a Legend of the Wasteland without any player(s) becoming incapacitated.
Obsessive Compulsive: Reach 100% Completion in the Campaign.
Open Minded: Get 10 Headshot kills with the Sniper Rifle.
Passive Aggressive: Get 3 kills with a single sentry bot.
Power Struggle: Complete Power Plant in the Campaign.
Rage Cup: Win all Races in the Campaign.
RAGE Nightmare: Finish the Campaign on Nightmare difficulty.
Roadkill: Run over 10 Mutants.
Silent But Deadly: Stealth kill 10 Enemies with the Striker Crossbow.
The Legend Begins...: Complete a Legend of the Wasteland.
Three Birds, One Bomb Car: Kill 3 Enemies with one RC Bomb Car.
Tinkerer: Construct 50 engineering items.
Ultra-violence: Finish the Campaign on at least Hard difficulty.
Vault Assault: Complete Gearhead Vault in the Campaign.
Waste Management: Complete Wasted Garage in the Campaign.
Wellness Plan: Complete The Well in the Campaign.
ytiC daeD: Complete Dead City Reverse in the Campaign.